Metal & x-ray detectable plastics allow any products which are made from plastics/polymers to be enhanced in terms of their ability to be detectable by metal and/or x-ray detection systems. 

Foreign bodies entering the food processing chain and passing undetected through to consumers is a major concern for the food industry and something which is monitored and reported on by organisations such as Food Standards Agency. Examples of foreign bodies include metal, wood, ceramic, glass, rubbers and plastics and, due to the varying nature of these, often different detection techniques are necessary to target each. One of the most difficult categories to detect is rubbers and plastics due mainly to their comparative low density (similar to many foods) and non-conductive/non-magnetic nature. Polymers are used extensively throughout food production lines and hence being able to detect foreign body fragments of them is an important consideration. This is the basis of the key role to be played by detectable polymer compound.